NASA's IceBridge flight was conducting airborne survey of Arctic and Antarctic ice Sharp angles and flat surface of iceberg indicate it probably recently broke off the ice shelf Rectangular iceberg appears to be freshly calved from Larsen C which released the massive A68 iceberg in 2017

According to scientists, the iceberg's sharp angles and flat surface are an indication that it had probably recently broken off the ice shelf.

"I often see icebergs with relatively straight edges, but I've not really seen one before with two corners at such right angles like this one," (must have just happened that way) Operation IceBridge senior support scientist Jeremy Harbeck said.